package edu.sctu.practice.class02.xuejiahua.test17;

/**
 * Created by Administrator on 2015/10/29.
 */
public class Tree {
  public int y;


    public Tree(int y) {
        this.y = y;
    }

    public void Grow(){
        System.out.println("the tree is " + y + "yreas old");

    }
}
